.header {
  position: relative;
  padding: 0 4rem;
  border-bottom: 1px solid #ccc;
  line-height: 2.8rem;
}

.header-left {
  position: absolute;
  left: 0;
}

.header-center {
  text-align: center;
  color: #000;
}

.header-right {
  position: absolute;
  right: 0;
}
